CH340 module / USB switch TTL / USB transfer RS232 / exceed PL2303 / STC Downloader / 9 Brush board STC official download chip. Perfectly compatible with all Series MCU STC will not be because of the different drivers that would lead to problems like PL2303 can not download the program. Ultra-stable.

1, new original CH340G chips, the chips are STC official recommended USB to TTL chips will not appear due to different drive / different computer as a result of incompatibilities! ! !
2, high-quality high-grade yellow pin, pin durable than the black market, beautiful;
3, not only has the power light PWR, there TXD and RXD LEDs, whether the product is easy to learn and intuitive to work in the absence of the instrument in the case;
4, 3V3 and 5V by a short circuit to take choice;
5, support WINDOWS 98 / ME / 2000 / XP / Server 2003 / VISTA / Server 2008 / Win7 / Win8 32 Bit / 64